1. Gene
  2. ATXN1 - ataxin 1 Gene

ATXN1 - ataxin 1 Gene

Homo sapiens

Also known as ATX1; SCA1; D6S504E

Gene ID: 6310 | Gene type: protein coding

About ATXN1

Cytogenetic location: 6p22.3 Genomic coordinates (GRCh38): 6:16,299,112-16,761,460 (from NCBI)

This gene has 15 transcripts (splice variants), 266 orthologues, 1 paralogue and is associated with 2 phenotypes. Ubiquitous expression in endometrium (RPKM 6.8), brain (RPKM 6.7) and 25 other tissues.

Summary

The autosomal dominant cerebellar ataxias (ADCA) are a heterogeneous group of neurodegenerative disorders characterized by progressive degeneration of the cerebellum, brain stem and spinal cord. Clinically, ADCA has been divided into three groups: ADCA types I-III. ADCAI is genetically heterogeneous, with five genetic loci, designated spinocerebellar ataxia (SCA) 1, 2, 3, 4 and 6, being assigned to five different chromosomes. ADCAII, which always presents with retinal degeneration (SCA7), and ADCAIII often referred to as the `pure' cerebellar syndrome (SCA5), are most likely homogeneous disorders. Several SCA genes have been cloned and shown to contain CAG repeats in their coding regions. ADCA is caused by the expansion of the CAG repeats, producing an elongated polyglutamine tract in the corresponding protein. The expanded repeats are variable in size and unstable, usually increasing in size when transmitted to successive generations. The function of the ataxins is not known. This locus has been mapped to chromosome 6, and it has been determined that the diseased allele contains 40-83 CAG repeats, compared to 6-39 in the normal allele, and is associated with spinocerebellar ataxia type 1 (SCA1). Alternative splicing results in multiple transcript variants, with one variant encoding multiple distinct proteins, ATXN1 and Alt-ATXN1, due to the use of overlapping alternate reading frames. [provided by RefSeq, Nov 2017]

ATXN1 Products(3)

mRNA Protein Name
NM_000332.4 NP_000323.2 ataxin-1 isoform ATXN1
NM_001128164.2 NP_001121636.1 ataxin-1 isoform ATXN1
NM_001357857.2 NP_001344786.1 ataxin-1 isoform Alt-ATXN1
Gene Ontology
  • Molecular Function
  • Biological Process
  • Cellular Component
Molecular Function GO Annotation Evidence Reference Source
enables identical protein binding IPI
IPI: Inferred from physical interaction
11001934 GOA
enables poly(G) binding IDA
IDA: Inferred from direct assay
11136710 GOA
enables poly(U) RNA binding IDA
IDA: Inferred from direct assay
11136710 GOA
enables protein binding IPI
IPI: Inferred from physical interaction
11001934 GOA
Biological Process GO Annotation Evidence Reference Source
involved in negative regulation of DNA-templated transcription IDA
IDA: Inferred from direct assay
15016912 GOA
involved in nuclear export IDA
IDA: Inferred from direct assay
15615787 GOA
Cellular Component GO Annotation Evidence Reference Source
located in cytoplasm IDA
IDA: Inferred from direct assay
7647801 GOA
located in nuclear inclusion body IDA
IDA: Inferred from direct assay
15615787 GOA
located in nuclear matrix IDA
IDA: Inferred from direct assay
9353120 GOA
located in nucleoplasm IDA
IDA: Inferred from direct assay
12757932 GOA
located in nucleus IDA
IDA: Inferred from direct assay
7647801 GOA
EXP: Inferred from Experiment IDA: Inferred from direct assay IPI: Inferred from physical interaction IMP: Inferred from mutant phenotype IGI: Inferred from genetic interaction IEP: Inferred from expression pattern

ATXN1 Protein Structure

ATXN-1_C

ATXN-1_C: Capicua transcriptional repressor modulator (415 - 445)

AXH

AXH: Ataxin-1 and HBP1 module (AXH) (574 - 687)

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  • 815 a.a.
Protein Preferred Names Protein Names

ataxin-1

alternative ataxin1

Related Diseases

Diseases Alias
Spinocerebellar Ataxia 1

Spinocerebellar Ataxia Type 1

SCA1

Olivopontocerebellar Atrophy I

Opca1

Opca4

Menzel Type Opca

Schut-Haymaker Type Opca

Spinocerebellar Atrophy I

Opca I

Olivopontocerebellar Atrophy Iv

Opca Iv

Cerebelloparenchymal Disorder I

Cpd1

Olivopontocerebellar Atrophy 1

Cerebelloparenchymal Disorder 1

Olivopontocerebellar Atrophy 4

Spinocerebellar Atrophy 1

Type 1 Spinocerebellar Ataxia

Spinocerebellar Ataxia-1

Ataxia, Spinocerebellar, Type 1

Primary Cerebellar Degeneration

Spinocerebellar Degenerations

Cerebellar Degenerations, Primary

Spinocerebellar Degeneration

Hereditary Ataxia

Sca

Spinocerebellar Ataxia

Ataxias Hereditary

Ataxias, Hereditary

Autosomal Dominant Cerebellar Ataxia

Spinocerebellar Ataxia

Adca

Pierre Marie Cerebellar Ataxia

Ataxia, Spinocerebellar

Sca

Autosomal Dominant Spinocerebellar Ataxia

Spinocerebellar Ataxias

Spinocerebellar Ataxia 12

Spinocerebellar Ataxia Type 12

SCA12

Ataxia, Spinocerebellar, Type 12

Dentatorubral-Pallidoluysian Atrophy

DRPLA

Naito-Oyanagi Disease

Haw River Syndrome

Myoclonic Epilepsy With Choreoathetosis

Nod

Ataxia, Chorea, Seizures, And Dementia

Dentatorubropallidoluysian Atrophy

Hrs

Naito Oyanagi Disease

Dentatorubral Pallidoluysian Atrophy

Dentatorubro-Pallidoluysian Atrophy

Myoclonic Epilepsies, Progressive

Atrophy, Pallidoluysian, Dentatorubral

Machado-Joseph Disease

SCA3

MJD

Spinocerebellar Ataxia 3

Azorean Disease

Spinocerebellar Ataxia Type 3

Spinocerebellar Atrophy

Azorean Neurologic Disease

Spinopontine Atrophy

Nigrospinodentatal Degeneration

Spinocerebellar Atrophy Iii

Spinocerebellar Atrophy Type 3

Azorean Ataxia

Azorean Disease Of The Nervous System

Machado Disease

Nigro-Spino-Dentatal Degeneration With Nuclear Ophthalmoplegia

Disease, Machado-Joseph

Ataxia, Spinocerebellar

Spinocerebellar Ataxia 17

Spinocerebellar Ataxia Type 17

SCA17

Huntington Disease-Like 4

Hdl4

Olivopontocerebellar Atrophy V

Cerebelloparenchymal Disorder Ii

Opca5

Cpd2

Sca 17

Ataxia, Spinocerebellar, Type 17

Friedreich Ataxia

Friedreich Ataxia 1

FRDA

Friedreich Ataxia With Retained Reflexes

Frda1

Fa

Friedreich'S Ataxia

Hereditary Spinal Ataxia

Fa1

Friedreich'S Tabes

Hereditary Spinal Sclerosis

Spinocerebellar Ataxia, Friedreich

Friedreich Spinocerebellar Ataxia

Friedrich'S Ataxia

Multiple System Atrophy 1

Multiple System Atrophy

Shy-Drager Syndrome

Msa

MSA1

Multiple System Atrophy 1, Susceptibility To

Sporadic Olivopontocerebellar Atrophy

Multisystem Atrophy

Msa1, Susceptibility To

Multiple System Atrophy, Susceptibility To

Opca

Progressive Autonomic Failure With Multiple System Atrophy

Sds

Parkinson Disease 7, Autosomal Recessive Early-Onset

Autosomal Recessive Early-Onset Parkinson Disease 7

PARK7

Parkinson'S Disease 7

Autosomal Recessive Early-Onset Parkinson'S Disease 7

Parkinson Disease 7

Amyotrophic Lateral Sclerosis-Parkinsonism/Dementia Complex Type 2

Autosomal Recessive Early-Onset Parkinson Disease Type 7

Parkinson Disease, Type 7

Spinal And Bulbar Muscular Atrophy, X-Linked 1

Kennedy Disease

Sbma

Spinal And Bulbar Muscular Atrophy

Kennedy'S Disease

X-Linked Spinal And Bulbar Muscular Atrophy

SMAX1

Kd

Kennedy Spinal And Bulbar Muscular Atrophy

Spinobulbar Muscular Atrophy

Bulbospinal Muscular Atrophy, X-Linked

Bulbospinal Neuronopathy, X-Linked Recessive

Xbsn

Spinal And Bulbar Muscular Atrophy Of Kennedy

Bulbospinal Muscular Atrophy

X-Linked Bulbospinal Amyotrophy

Bulbo-Spinal Atrophy, X-Linked

Spinal Bulbar Muscular Atrophy

X-Linked Bulbo-Spinal Atrophy

X-Linked Spinal Bulbar Muscular Atrophy

X-Linked Bsma

X-Linked Bulbospinal Muscular Atrophy

Spinal And Bulbar Muscular Atrophy X-Linked 1

Bulbospinal Muscular Atrophy X-Linked

Bulbospinal Neuronopathy X-Linked Recessive

Kennedy Disease)

Kennedy Syndrome

Atrophy, Muscular, Spinal And Bulbar, Kennedy Type

Atrophy, Muscular, Spinobulbar

Bulbospinal Neuronopathy

Dementia

Dementias

Presenile Dementia

Alzheimer Type Dementia

Alzheimer Sclerosis

Alzheimer Disease Dementia

Alzheimer Dementia

Primary Degenerative Alzheimer Type Dementia

End Stage Alzheimer'S Dementia

Alzheimer'S Type Atypical Dementia

Alzheimer Type Presenile Dementia

Early Onset Alzheimer Dementia

Dementia In Alzheimer Disease Type 2

Dementia In Alzheimer Disease With Early Onset

Early Onset Alzheimer Type Dementia, Uncomplicated

Primary Degenerative Alzheimer Type Dementia, Early Onset

Primary Degenerative Alzheimer Type Dementia, Presenile Onset, Uncomplicated

Alzheimer Disease Dementia With Early Onset

Presenile Sclerosis

Presenile Brain Sclerosis

Presenile Alzheimer Brain Sclerosis

Late Onset Alzheimer Dementia

Dementia In Alzheimer Disease Type 1

Dementia In Alzheimer Disease With Late Onset

Primary Degenerative Alzheimer Type Dementia, Late Onset

Sdat - [Senile Dementia, Alzheimer Type]

Alzheimer Disease Dementia With Late Onset

Late Onset Alzheimer Brain Sclerosis

Senile Alzheimer Brain Disease

Senile Alzheimer Brain Sclerosis

Senile Primary Degenerative Alzheimer Type Dementia

Senile Dementia Of The Alzheimer Type

Arteriosclerotic Dementia

Strategic-Infarct Dementia

Post Stroke Dementia

Vascular Cognitive Impairment

Vascular Dementia

Dementia Of The Lewy Body Type

Dementia With Lewy Bodies

Sdlt - [Senile Dementia Of The Lewy Body Type]

Senile Dementia Of The Lewy Body Type

Alcohol-Related Dementia

Alcoholic Dementia Nos

Alcohol-Induced Dementia

Alcoholic Brain Syndrome

Chronic Alcoholic Brain Syndrome

Alcohol Dementia

Late Onset Alcoholic Psychosis

Residual And Late-Onset Alcohol-Induced Psychotic Disorder

Mental And Behavioural Disorders Due To Use Of Sedatives Or Hypnotics, Residual And Late-Onset Psychotic Disorder

Late-Onset Psychoactive Substance-Induced Psychotic Disorder

Inhalant Dementia

Volatile Solvents Dementia

Dementia In Paralysis Agitans

Pdd - [Parkinson Disease Dementia]

Dementia Syndrome Of Parkinson Disease

Dementia In Parkinson Disease

Parkinson Related Dementia

Dementia In Huntington Chorea

Hiv - [Human Immunodeficiency Virus] Dementia

Hiv- [Human Immunodeficiency Virus] Associated Cognitive Motor Complex

Hiv- [Human Immunodeficiency Virus] Associated Dementia Complex

Aids - [Acquired Immunodeficiency Syndrome] Dementia Complex

Aids Related Dementia

Dementia Due To Niacin Deficiency

Cerebellar Disease

Cerebellar Diseases

Cerebellar Dysfunction

Cerebellar Abnormality

Cerebellar Disorders

Spinocerebellar Ataxia 4

Spinocerebellar Ataxia Type 4

SCA4

Spinocerebellar Ataxia, Autosomal Dominant, With Sensory Axonal Neuropathy

Spinocerebellar Ataxia Autosomal Dominant With Sensory Axonal Neuropathy

Spinocerebellar Ataxia-4

Spinocerebellar Ataxias

Cerebellar Ataxia Type 47

Sca47

Dystonia 12

DYT12

Rdp

Generalized Dystonia

Dystonia-12

Rapid-Onset Dystonia-Parkinsonism

Familial Dystonia

Dystonia Musculorum Deformans

Dystonic Disorders

Idiopathic Familial Dystonia

Dystonia-Parkinsonism, Rapid-Onset

Fragments Of Torsion Dystonia

Dyt-Atp1a3

Rapid-Onset Dystonia Parkinsonism

Rodp

Dystonia, Type 12

Dystonia 3, Torsion, X-Linked

Idiopathic Non-Familial Dystonia

Symptomatic Torsion Dystonia

Dystonia Disorders

Spinocerebellar Ataxia 18

Spinocerebellar Ataxia Type 18

SCA18

Smna

Sensorimotor Neuropathy With Ataxia, Autosomal Dominant

Sensorimotor Neuropathy With Ataxia Autosomal Dominant

Muscular Atrophy

Muscle Wasting

Amyotrophia

Wasting - Muscle

Skeletal Muscle Atrophy

Huntington Disease

Huntington'S Disease

Huntington Chorea

Huntington'S Chorea

HD

Huntington Chronic Progressive Hereditary Chorea

Juvenile Huntington Disease

Chronic Progressive Chorea

Chronic Progressive Hereditary Chorea

Hc - [Huntington Chorea]

Hereditary Chorea

Progressive Hereditary Chorea

Olivopontocerebellar Atrophy

Thomas Syndrome

Olivopontocerebellar Atrophies

Dejerine-Thomas Syndrome

Thomas' Syndrome

Wadia-Swami Syndrome

Opca

Potter Sequence-Cleft Lip/Palate-Cardiopathy Syndrome

Spinocerebellar Ataxia Type 2

Cerebellar Ataxia Type 48

Sca48

Spinocerebellar Ataxia 6

Spinocerebellar Ataxia Type 6

SCA6

Type 6 Spinocerebellar Ataxia

Spinocerebellar Ataxia-6

Ataxia, Spinocerebellar, Type 6

Spinocerebellar Ataxia 7

Spinocerebellar Ataxia Type 7

SCA7

Opca3

Opca Iii

Olivopontocerebellar Atrophy Iii

Opca With Retinal Degeneration

Opca With Macular Degeneration And External Ophthalmoplegia

Adca, Type Ii

Autosomal Dominant Cerebellar Ataxia Type 2

Olivopontocerebellar Atrophy 3

Autosomal Dominant Cerebellar Ataxia, Type Ii

Autosomal Dominant Cerebellar Ataxia Type Ii

Adca2

Adcaii

Ataxia With Pigmentary Retinopathy

Cerebellar Syndrome-Pigmentary Maculopathy Syndrome

Olivopontocerebellar Atrophy With Retinal Degeneration

Spinocerebellar Ataxia-7

Ataxia, Spinocerebellar, Type 7

Restless Legs Syndrome

Wed

Willis-Ekbom Disease

Restless Leg Syndrome

Ekbom Syndrome

Wittmaack-Ekbom Syndrome

Willis Ekbom Disease

Ekbom'S Syndrome

Rls

Restless Legs

Restless Legs Syndrome, Susceptibility To

Retinal Degeneration

Degeneration Of Retina

Spinocerebellar Ataxia 14

Spinocerebellar Ataxia Type 14

SCA14

Ataxia, Spinocerebellar, Type 14

Dystonia

Dystonic Disease

Dystonic Disorder

Dystonia Disorders

Neuroleptic Dyskinesia

Episodic Ataxia, Type 2

Episodic Ataxia Type 2

EA2

Apca

Capa

Cerebellopathy, Hereditary Paroxysmal

Acetazolamide-Responsive Hereditary Paroxysmal Cerebellar Ataxia

Cerebellar Ataxia, Paroxysmal, Acetazolamide-Responsive

Episodic Ataxia With Nystagmus

Ataxia, Episodic, With Nystagmus

Episodic Ataxia, Nystagmus-Associated

Ataxia, Familial Paroxysmal

Acetazolamide-Responsive Episodic Ataxia Syndrome

Acetazolamide-Responsive, Hereditary, Paroxysmal, Cerebellar Ataxia

Ataxia, Familial, Paroxysmal

Nystagmus-Associated Episodic Ataxia

Familial Paroxysmal Ataxia

Episodic Ataxia 2

Ea-2

Episodic Ataxia Nystagmus-Associated

Hereditary Paroxysmal Cerebellopathy

Ataxia, Episodic, Type 2

Spinocerebellar Ataxia, Autosomal Recessive, With Axonal Neuropathy 2

Aoa2

Ataxia With Oculomotor Apraxia Type 2

Scar1

SCAN2

Ataxia-Oculomotor Apraxia 2

Ataxia-Ocular Apraxia 2

Ataxia-Oculomotor Apraxia Type 2

Scan 2

Spinocerebellar Ataxia With Axonal Neuropathy Type 2

Spinocerebellar Ataxia, Autosomal Recessive 1, Formerly

Scar1, Formerly

Autosomal Recessive Spinocerebellar Ataxia-1

Spinocerebellar Ataxia, Autosomal Recessive, 1

Ataxia-Ocular Apraxia-2

Spinocerebellar Ataxia, Autosomal Recessive 1

Charcot-Marie-Tooth Disease, Axonal, Type 2dd

CMT2DD

Charcot-Marie-Tooth Neuropathy, Type 2dd

Charcot-Marie-Tooth Disease Type 2dd

Atp1a1-Related Autosomal Dominant Charcot-Marie-Tooth Disease Type 2

Atp1a1-Related Cmt2

Autosomal Dominant Charcot-Marie-Tooth Disease Type 2dd

Charcot-Marie-Tooth Disease 2dd

Gordon Holmes Syndrome

Cerebellar Ataxia And Hypogonadotropic Hypogonadism

Lhrh Deficiency And Ataxia

Cerebellar Ataxia-Hypogonadism Syndrome

GDHS

Cahh

Luteinizing Hormone-Releasing Hormone Deficiency With Ataxia

Gordon-Holmes Syndrome

Deficiency Of Luteinizing Hormone-Releasing Hormone With Ataxia

Luteinizing Hormone-Releasing Hormone, Deficiency Of, With Ataxia

Cerebellar Ataxia - Hypogonadism

Luteinizing Hormone Releasing Hormone, Deficiency Of With Ataxia

Ataxia, Cerebellar, And Hypogonadotropic Hypogonadism

Episodic Ataxia

Isaacs Syndrome

Neuromyotonia

Isaacs' Syndrome

Acquired Neuromyotonia

Continuous Muscle Fiber Activity Syndrome

Quantal Squander Syndrome

Isaacs-Mertens Syndrome

Ea Syndrome

Episodic Ataxia Syndrome

Isaac Syndrome

Isaac'S-Merten'S Syndrome

Isaac-Mertens Syndrome

Peripheral Nerve Hyperexcitability

Ea

Peripheral Nerve Hyperexcitability Syndrome

Ataxia, Episodic

Isaacs Neuromyotonia

Continuous Muscle Fibre Activity

Spinocerebellar Ataxia 8

Spinocerebellar Ataxia Type 8

SCA8

Ataxia, Spinocerebellar, Type 8

Autosomal Recessive Cerebellar Ataxia

Arca

Choreatic Disease

Chorea

Hereditary Chorea

Spinal Muscular Atrophy

Sma

5q Sma

Proximal Sma

Sma-Associated Sma

Spinal Amyotrophies

Spinal Amyotrophy

Spinal Muscle Degeneration

Spinal Muscle Wasting

Muscular Atrophy Spinal

Atrophy, Muscular, Spinal

Hereditary Motor Neuronopathy

Progressive Muscular Atrophy

Sma - [Spinal Muscular Atrophy]

Schizophrenia

SCZD

Schizophrenia With Or Without An Affective Disorder

Schizophrenia 12

Schizophrenia, Susceptibility To

Schizophrenia-1

Dementia Praecox

Schizophrenia 1

Parkinson Disease, Late-Onset

Parkinson Disease

Parkinson'S Disease

PD

PARK

Parkinson Disease, Susceptibility To

Late Onset Parkinson'S Disease

Late Onset Parkinson Disease

Paralysis Agitans

Primary Parkinsonism

Idiopathic Parkinson Disease

Parkinson'S

Parkinson Disease, Late-Onset, Susceptibility To

Parkinson Disease, Age Of Onset, Modifier

Lewy Body Parkinson Disease

Idiopathic Parkinson'S Disease

Pd - [Parkinson Disease]

Parkinson Disease Nos

Parkinson, Nos

Primary Parkinson Disease

Spastic Ataxia

Spax

Ataxia, Spastic

Amyotrophic Lateral Sclerosis 1

Amyotrophic Lateral Sclerosis

ALS

Lou Gehrig Disease

Amyotrophic Lateral Sclerosis Type 1

Charcot Disease

ALS1

Amyotrophic Lateral Sclerosis, Susceptibility To

Fals

Lou Gehrig'S Disease

Mnd

Motor Neuron Disease

Familial Amyotrophic Lateral Sclerosis

Amyotrophic Lateral Sclerosis 1, Familial

Amyotrophic Lateral Sclerosis 1, Autosomal Dominant

Motor Neuron Disease, Bulbar

Motor Neurone Disease

Amyotrophic Lateral Sclerosis With Dementia

Dementia With Amyotrophic Lateral Sclerosis

Motor Neuron Disease, Amyotrophic Lateral Sclerosis

Sclerosis, Lateral, Amyotrophic

Sclerosis, Lateral, Amyotrophic, Type 1

Amyotrophic Sclerosis

Als - [Amyotrophic Lateral Sclerosis]

Wasting Palsy

Amyotrophic Paralysis

Amyotrophy Lateral Sclerosis

Wasting Paralysis

Spinal Progressive Amyotrophy

Progressive Atrophic Paralysis

Hereditary Spastic Paraplegia

Familial Spastic Paraplegia

Hereditary Spastic Paraparesis

Strumpell-Lorrain Disease

Familial Spastic Paraparesis

Hsp

Spg

Strümpell-Lorrain Disease

Spastic Paraplegia, Hereditary

French Settlement Disease

Strumpell-Lorrain Syndrome

Fsp

Spastic Paraplegia, Familial

Spastic Paraplegia Hereditary

Spastic Paraplegia 3, Autosomal Dominant

Spastic Paraparesis

Hereditary Spastic Paralysis

Familial Spastic Paralysis

Hereditary Spastic Ataxia

Nervous System Disease

Abnormality Of The Nervous System

Nervous System Diseases

Nervous System Disorder

Retinitis Pigmentosa

RP

Rod-Cone Dystrophy

Autosomal Recessive Retinitis Pigmentosa

Non-Syndromic Retinitis Pigmentosa

Pericentral Pigmentary Retinopathy

Pigmentary Retinopathy

Tapetoretinal Degeneration

Rcd

Retinitis Pigmentosa Autosomal Recessive

ARRP

Retinitis Pigmentosa, Autosomal Recessive

Retinitis Pigmentosa 1

Diseases Alias
Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Orthologs Information

Species Symbol Source ID
Canis familiaris ATXN1 VGNC VGNC:38298
Mus musculus ATXN1 MGD MGI:104783
Felis catus ATXN1 VGNC VGNC:60035
Rattus norvegicus ATXN1 RGD RGD:3624
Bos taurus ATXN1 VGNC VGNC:26337
Macaca mulatta ATXN1 VGNC VGNC:70045